i'm using the Nice Paypall Button Plugin for recharging a phone card. The user select the phone service (VoIP, Pinless etc...), the recharge amount and then click the paypal button. I've to add the Item Number dynamically, because it is a unique PIN, associated to the user, that rapresent the card number that has to be recharged.
I've to put it dynamically because it change respect of the user logged in.
I hope that my english is not so bad.
Thanks for yoour support